Car-roof



W. D. THOMPSON.

CAR ROOF.

APPLICATION FILED ocT. Io, I9I

Patented July 13, 1920.

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CAR ROOF.

APPLICATION FILED ucT. lo, 1919.

Pimm/ed July l, 1920.

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CAR ROOF.

APPLICATION FILED ocT. Io, 1919.

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CAR ROOF.

APPLICATION FILED ocT.1o,1919.

UNITED STATES PATENT OFFICE.

WILLIAM D. THOMPSON, OF DETROIT, MICHIGAN, ASSIGNOR TO HUTCI-IINS CAR ROOFING COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

CAB-ROOF.

Application led October 10. 1919.

To all w/w'm. t may concern Be it known that I, IVILLIAM D. THOMP- SON, a citizen of the United States of America, residing at Detroit, in the Vcounty of IVayne and State of Michigan, have invented certain new and useful Improvements in Car-Roofs, of which the following is a specification,reference being had therein to the accompanying drawings.

The invention relates to car roofs of the flexible type. In the present state of the art, it is usual in the construction of this type of roofs to employ metallic roofing sheets which are arranged between carlines, the joints being weather-proofed by caps embracing said carlines and upstanding edge flanges on the sheets. This construction necessitates a uniformspacing of the carlines and a width of sheet corresponding to such spacing. It has not, however, been the uniform practice in the past to build car roofs with carlines equally spaced, and frequently, new roofs are applied to these old cars. This necessitates the tearing out of the roof frame of carlines and purlins and the building of a new frame with the carlines uniformly spaced.

It is the obj ect of the present invention to obtain a construction of flexible roof which is applicable to old roof frames irrespective of the spacing, shape, or arrangement of the carlines. It is a further object to obtain various features of advantage, as hereinafter set forth.

In the drawings:

'Figure l is a plan view of the car roof; Fig. 2 is a cross-section thereof in the plane of one of the mullions;

' Fig. 3 is a section longitudinally of the roof;

Fig. e is a cross-section through the side plate of the car, showing the manner of securing the weather-proofing cap;

Figf is an end elevation thereof;

Figs. 6 and 7 are views similar to Figs. 2 and 3 showing a modified construction.

Composite wooden and metal car roofs are usually classified as outside metal roofs and inside metal roofs, according to the arrangement Vof the `metal weather-proofing means. In each type there is a roof frame composed of carlines and purlins with a covering of roofing boards nailed thereto. The outside metal roofs are further provided with metal weather-proofing sheets laid on Speccation of Letters Patent.

Patented July 13, 1920.

Serial No. 329,712.

top of the boards, while the inside metal roofs having metal drip pans or sheets arranged beneath tlie boards for conducting the water outward to the eaves. When outside metal roofs are repaired, it is frequently necessary not only to replace the metal weather-proofing sheets, but also many or all of the roof boards, and where the latter are not replaced, they are frequently in a warped uneven condition, which interferes greatly with the laying of a smooth outside cover Also there is danger from old nails coming in contact with the metallic sheets and puncturing the same. I have, therefore, devised a construction free from these objections, which consists essentially in a flexible metallic roof laid directly upon the roof frame. The sheets of this metallic roof are not arranged between carlines, nor are they necessarily of a width corresponding to the spacing of the carlines. Instead, the sheets are laid on the framework irrespective of the spacing of the carlines and are retained in position with suicient freedom to compensate for the weaving or distortion of the frame, but are limited from abnormal displacement.

In detail, A are carlines and B are purlins arranged thereabove and extending from end to end of the car. C are roofing sheets which are formed with upstanding flanges at their opposite sides, said flanges being preferably return-bent, as indicated at D. There is also a marginal portion E of the sheet, which is'raised to-a slightly higher plane than the body portion so as to be normally free from contact with the purlins. F are cap members for embracing the return-bent flanges D of adjacent sheets and provided with an oppositely return bent flange Grrfor engagement therewith. The caps F are secured to the car frame, so as to hold the sheets thereupon, but by reason of the open return-bends a limited universal freedom of movement in the plane of the sheets is permitted.

To prevent abnormal displacement of the sheets and to relieve the flanges from stress, there are preferably arranged between the sheets transverse strips or mullions II. These are bolted, or otherwise secured, to the purlins, as indicated at I, and are so positioned as to extend between adjacent sheets and beneath the cap. AThe mullions areof sulcient length to properly guide the sheets,

but instead of extending completely across the roof frame to the side plates thereof,

they ypretera-bly terminate at 1the first purli-n at the eaves, which .overlap the flanges K .o ,t .adj-acont sheets vand are preferably inturned at their lower edges, as indicated .at s0. To securely ho1d1the-ca'ps .upon the roo-f 'trame A .theyfare attached :preferably to bracket imembers P secured to the inner side of the plate Q -bylsuitable means, such lasthe lag screws Band bolts P2. The attachment between the .brackets P and the .caps isfone-Which permits ottirst telescopically engaging :the vcaps with rthe rooting sheets Vupon thegvztrame. As shown, #there is secured Within :the cap member the pressed :sheet metal ,member R `which nests `apen .a strip `S secured to the atpper Itace ofthe plate Q. The member R is riveted, oriotheryvise secmied, to the flange `N at N :and Zalsogto the (top .of the cap atfT,

so fas to :form ja rigid connection therewith. At its inner end [the memher R has an apentured :tlange It which registers with a corresponding aperture inthe bracket member 1P, While the bolt U engaged-With the registering apertures pivotal'ly 'attaches .the .cap

Vto the .t'rame. Aft the ridge'thene is arranged the usual ridge caps V and '.jnnction caps for weather-proofing*between .the sheets.

WVhere the roof as Labove described is to be applied to an `old car `previously provided with an ontsidemetalor Vinside arnet-al roof, `the reeling boards are lnrsit removed and the trame is Vcleared .fot-projecting `:natls: The mul-tions' H, are then properly positioned irpon the frame and' are :secured-thereto by theybotts l. The shcetsUaneathcn laid iipon purlim inutermediiate'the -mullions H, atter which the caps -F are telescopica-llygengaged with adjacent sheets and slid inward over the mngllions. ylhe ,caps iare :secured-by the bolts to the bna'ckets l) and the, ridge porltionse the :sheets and caps are :secured by `:the ridge caps YV and junction Acaps NV.l

tiren 'thus'assemblech tlac roofing sheets yare `V free to kplay NWithin :the @space :between the mullions and are also free to move wendwise within the llimits of .the "open returnibent porticns .at the .feavesiand thelclearance space within the ridge caps. Abnormalantw-.ard displacement is however prevented by the Vfdown-tnrned\ M of the caps, which overlap the ianges K ofthesheets,l Wfhilewthe caps-'themselves are ,presented tromoatwa'rd L t y'tihefeonnectingiboltsll. 1 .In-Figsfand 7,1 travestieten azmodiied construction in which instead of laying the rooting sheets directly upon the purlins, said purlins are provi-ded with facing strips B.. The purpose Iof `these strips lis to protect the yupper face from any old nails, or other obstructions, which might injure the sheet and to provide a smooth surface for the sheets -to rest upon. I also preferably provide an intermediate support X for the sheets which is formed of ya strip extending transversely of the car or parallel to .the :mullionssand midway between the same. llith Asiren a construction lighter 4 gage metal' may be used for the rooting sheets. 'y u' p. i

That I claim las my invention `is:

l. `A car roof comprising an .open Jframe .of carlines .and purlins, roofngsheetslaid directly upon said frame irrespectivelnf .the spacing of the' car-lines andi-raving .a.limi ted freedom oi' movement, means secured to the trame .between .adjacent sheetsdor `limiting the Amovement thereof, @and means embracing said limiting means :for weathery,prooting ,and holding .down .the sheets.

2. In a car root, a -trame .of fcarlines and YVsuper-posed purlins, v:rooting sheets laid `dif rectly upon said jpurlins irrespective of the spacing et the carlines andA having .a limited .freedom .of movement, members secitred .to the pnrlins intermediate adjacentsheets for limiting the movement thereof, iandWeatherprootin g means .em-bracing said members .and .constituting the holding down .means `for said sheets. Y Y

Y 3. .A car roof [comprising airame Iof carlines and snperposed pnrlins, rooting @sheets laid npon, said pn-rlins irrespective of the spacing of 4said carlmes, annlhons scoured to said pur-lans .intermediate adjacent H902*- ing sheetsformin-g stops tor limitingmove- `ment thereof, and caps .embracing .saidrmfullionsnnd the edges :of adjacentsheetsiorm- .ing-fa.Weather-proofing and ,holding down means therefor. ,A

4t. A car root comprising a frame of carlines and superposed purlins, muil-ions secured to said .p'urlinsgir-respeetivte fof-"the spacing of said ,carlnea mooingsheets laid V.bf-tween mullions withclearance Vfor Y a `limited freedom of movement, the edges ott4 said .sheets .having metnrn-hent Weather-.proofing flanges, caps .to-r embracing sai-d mul-lions having cooperating returnebentfflangestelescopicallyengaging the/flanges of gthe sheets,

and lmeans for securing said leaps towsaid,`

trameandgthereby holding down said sheets.

5.. A `Ecar roof Aeoni-pr-isin-g.,-aV trame-@- carflines and :super-posed pnrlins, mullions :Secured Lto 'said `gpurlins, irnespectiye ofthe .izo

.spacing et thecarlines, said mid-lions termi-i125 natingshont .et .the side plate .fo the car,

rooting sheets Ilaid nponsaid t.pn-inline lintermediate .saidwmul-lions with itreedom 'fter limited moaemenneapsembraeimgfsaid mu- .lions :and tor-ming a` .weather -lelllleofgtelef seopic engagement with said sheets, brackets secured to Said side plates in alinement with said mullions, and means for securing Said caps to said brackets when telescopically engaged with Suid sheets.

6. A replacement root' for cars designed for board roofs, comprising facing strips luid upon the purlins :md Secured thereto7 mullions mounted upon said facing strips, rooting sheets leid upon Said 'facing strips intermediate said mullions, and Weatherprooiingif means embracing the mullions and engaging the sheets.

7. In a our roof, the Combination of an open frame of carlines and purlins, facing 15 rooing sheets laid upon said facing strips 20 and supporting; strips, and Weather-proofing means embracing Said inullions and enga@- ing said sheets. i

In testimony whereof I eilix my signature.

' WILLIAM D. THOMPSON. 

